sony laptop fan control

As a result of recent changes in current, fan on my vaio pcg-v505bx
now _never_ shuts off. Prevoiusly, it turns on/off periodically, according to system cpu load, etc. 
Can anybody gives me advice about how to deal with it?

This is my acpi-reladed syctls:

kern.acct_chkfreq: 15
machdep.tsc_freq: 1193110024
machdep.i8254_freq: 1193182
machdep.acpi_timer_freq: 3579545
dev.cpu.0.freq: 1200
dev.cpu.0.freq_levels: 1200/20200 1050/17675 900/15150 787/13256
750/12625 656/11046 600/10100 562/9468 525/8837 450/7575 393/6628
337/5681 300/5050 262/4418 225/3787 187/3156 150/2525 112/1893 75/1262
dev.acpi_perf.0.freq_settings: 1200/20200
dev.cpufreq.0.%driver: cpufreq
dev.cpufreq.0.%parent: cpu0
dev.acpi_throttle.0.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1
5000/-1 3750/-1 2500/-1 1250/-1
dev.p4tcc.0.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1
3750/-1
debug.acpi.do_powerstate: 1
debug.acpi.acpi_ca_version: 0x20041119
debug.acpi.semaphore_debug: 0
hw.acpi.supported_sleep_state: S3 S4 S5
hw.acpi.power_button_state: S5
hw.acpi.sleep_button_state: S3
hw.acpi.lid_switch_state: S5
hw.acpi.standby_state: S1
hw.acpi.suspend_state: S3
hw.acpi.sleep_delay: 1
hw.acpi.s4bios: 0
hw.acpi.verbose: 0
hw.acpi.reset_video: 0
hw.acpi.cpu.cx_supported: C1/1 C2/1 C3/185
hw.acpi.cpu.cx_lowest: C3
hw.acpi.cpu.cx_usage: 0% 0% 0%
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.tz0.temperature: 63.9C
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 84.9C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 90.9C
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
hw.acpi.battery.life: 100
hw.acpi.battery.time: -1
hw.acpi.battery.state: 2
hw.acpi.battery.units: 1
hw.acpi.battery.info_expire: 5
hw.acpi.acline: 1
machdep.acpi_timer_freq: 3579545
machdep.acpi_root: 1012672
dev.acpi.0.%desc: SONY
dev.acpi.0.%driver: acpi
dev.acpi.0.%parent: nexus0
dev.acpi_sysresource.0.%desc: System Resource
dev.acpi_sysresource.0.%driver: acpi_sysresource
dev.acpi_sysresource.0.%location: handle=\_SB_.PCI0.LPC0.MBRD
dev.acpi_sysresource.0.%pnpinfo: _HID=PNP0C02 _UID=31
dev.acpi_sysresource.0.%parent: acpi0
dev.acpi_ec.0.%desc: Embedded Controller: GPE 0x1c
dev.acpi_ec.0.%driver: acpi_ec
dev.acpi_ec.0.%location: handle=\_SB_.PCI0.LPC0.EC0_
dev.acpi_ec.0.%pnpinfo: _HID=PNP0C09 _UID=0
dev.acpi_ec.0.%parent: acpi0
dev.acpi_ec.0.wake: 0
dev.acpi_timer.0.%desc: 24-bit timer at 3.579545MHz
dev.acpi_timer.0.%driver: acpi_timer
dev.acpi_timer.0.%location: unknown
dev.acpi_timer.0.%pnpinfo: unknown
dev.acpi_timer.0.%parent: acpi0
dev.cpu.0.%parent: acpi0
dev.acpi_perf.0.%desc: ACPI CPU Frequency Control
dev.acpi_perf.0.%driver: acpi_perf
dev.acpi_perf.0.%parent: cpu0
dev.acpi_perf.0.freq_settings: 1200/20200
dev.acpi_throttle.0.%desc: ACPI CPU Throttling
dev.acpi_throttle.0.%driver: acpi_throttle
dev.acpi_throttle.0.%parent: cpu0
dev.acpi_throttle.0.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1
5000/-1 3750/-1 2500/-1 1250/-1
dev.acpi_lid.0.%desc: Control Method Lid Switch
dev.acpi_lid.0.%driver: acpi_lid
dev.acpi_lid.0.%location: handle=\_SB_.LID_
dev.acpi_lid.0.%pnpinfo: _HID=PNP0C0D _UID=0
dev.acpi_lid.0.%parent: acpi0
dev.acpi_button.0.%desc: Power Button
dev.acpi_button.0.%driver: acpi_button
dev.acpi_button.0.%location: handle=\_SB_.PWRB
dev.acpi_button.0.%pnpinfo: _HID=PNP0C0C _UID=0
dev.acpi_button.0.%parent: acpi0
dev.acpi_button.0.wake: 1
dev.pcib.0.%parent: acpi0
dev.pci_link.0.%parent: acpi0
dev.pci_link.1.%parent: acpi0
dev.pci_link.2.%parent: acpi0
dev.pci_link.3.%parent: acpi0
dev.pci_link.4.%parent: acpi0
dev.pci_link.5.%parent: acpi0
dev.pci_link.6.%parent: acpi0
dev.pci_link.7.%parent: acpi0
dev.acpi_tz.0.%desc: Thermal Zone
dev.acpi_tz.0.%driver: acpi_tz
dev.acpi_tz.0.%location: handle=\_TZ_.ATF0
dev.acpi_tz.0.%pnpinfo: _HID=none _UID=0
dev.acpi_tz.0.%parent: acpi0
dev.atdma.0.%parent: acpi0
dev.npxisa.0.%parent: acpi0
dev.atpic.0.%parent: acpi0
dev.attimer.0.%parent: acpi0
dev.attimer.1.%parent: acpi0
dev.speaker.0.%parent: acpi0
dev.atkbdc.0.%parent: acpi0
dev.psmcpnp.0.%parent: acpi0
dev.acpi_sony.0.brightness: 100
dev.acpi_sony.0.ctr: 0
dev.acpi_sony.0.pcr: 24
dev.acpi_sony.0.wdp: 256
dev.acpi_sony.0.cdp: 1
dev.acpi_sony.0.%desc: Sony notebook controller
dev.acpi_sony.0.%driver: acpi_sony
dev.acpi_sony.0.%location: handle=\_SB_.PCI0.LPC0.SNC_
dev.acpi_sony.0.%pnpinfo: _HID=SNY5001 _UID=0
dev.acpi_sony.0.%parent: acpi0
dev.acpi_cmbat.0.%desc: Control Method Battery
dev.acpi_cmbat.0.%driver: acpi_cmbat
dev.acpi_cmbat.0.%location: handle=\_SB_.PCI0.LPC0.EC0_.BAT1
dev.acpi_cmbat.0.%pnpinfo: _HID=PNP0C0A _UID=1
dev.acpi_cmbat.0.%parent: acpi0
dev.acpi_acad.0.%desc: AC Adapter
dev.acpi_acad.0.%driver: acpi_acad
dev.acpi_acad.0.%location: handle=\_SB_.PCI0.LPC0.EC0_.ACAD
dev.acpi_acad.0.%pnpinfo: _HID=ACPI0003 _UID=0
dev.acpi_acad.0.%parent: acpi0

Current dmesg can be obtained from
http://www.toxahost.ru/dmesg/laptoxa.txt

Thanks in advance